v2.4.1.9

Unconsolidated Entities - Summary of Remaining Equity Commitments (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	$ 2,577.0pld_RemainingEquityCommitments
Prologis Targeted U.S. Logistics Fund [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	376.0pld_RemainingEquityCommitments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = pld_PrologisTargetedUsLogisticsFundMember
Prologis Targeted Europe Logistics Fund [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	314.0pld_RemainingEquityCommitments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = pld_PrologisEuropeLogisticsFundMember
Prologis European Properties Fund II [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	152.0pld_RemainingEquityCommitments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = pld_PrologisEuropeanPropertiesFundTwoMember
Europe Logistics Venture 1 [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	25.0pld_RemainingEquityCommitments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = pld_EuropeLogisticsVentureOneMember
Prologis European Logistics Partners [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	208.0pld_RemainingEquityCommitments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = pld_PrologisEuropeanLogisticsPartnersMember
Prologis China Logistics Venture 1 and 2 [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	1,502.0pld_RemainingEquityCommitments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = pld_PrologisChinaLogisticsVentureOneAndTwoMember
Prologis [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	496.0pld_RemainingEquityCommitments / dei_LegalEntityAxis = pld_PrologisMember
Prologis [Member] | Prologis Targeted Europe Logistics Fund [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	117.0pld_RemainingEquityCommitments / dei_LegalEntityAxis = pld_PrologisMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = pld_PrologisEuropeLogisticsFundMember
Prologis [Member] | Prologis European Properties Fund II [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	46.0pld_RemainingEquityCommitments / dei_LegalEntityAxis = pld_PrologisMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = pld_PrologisEuropeanPropertiesFundTwoMember
Prologis [Member] | Europe Logistics Venture 1 [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	4.0pld_RemainingEquityCommitments / dei_LegalEntityAxis = pld_PrologisMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = pld_EuropeLogisticsVentureOneMember
Prologis [Member] | Prologis European Logistics Partners [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	104.0pld_RemainingEquityCommitments / dei_LegalEntityAxis = pld_PrologisMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = pld_PrologisEuropeanLogisticsPartnersMember
Prologis [Member] | Prologis China Logistics Venture 1 and 2 [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	225.0pld_RemainingEquityCommitments / dei_LegalEntityAxis = pld_PrologisMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = pld_PrologisChinaLogisticsVentureOneAndTwoMember
Venture Partners [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	2,081.0pld_RemainingEquityCommitments / dei_LegalEntityAxis = pld_FundPartnerMember
Venture Partners [Member] | Prologis Targeted U.S. Logistics Fund [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	376.0pld_RemainingEquityCommitments / dei_LegalEntityAxis = pld_FundPartnerMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = pld_PrologisTargetedUsLogisticsFundMember
Venture Partners [Member] | Prologis Targeted Europe Logistics Fund [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	197.0pld_RemainingEquityCommitments / dei_LegalEntityAxis = pld_FundPartnerMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = pld_PrologisEuropeLogisticsFundMember
Venture Partners [Member] | Prologis European Properties Fund II [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	106.0pld_RemainingEquityCommitments / dei_LegalEntityAxis = pld_FundPartnerMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = pld_PrologisEuropeanPropertiesFundTwoMember
Venture Partners [Member] | Europe Logistics Venture 1 [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	21.0pld_RemainingEquityCommitments / dei_LegalEntityAxis = pld_FundPartnerMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = pld_EuropeLogisticsVentureOneMember
Venture Partners [Member] | Prologis European Logistics Partners [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	104.0pld_RemainingEquityCommitments / dei_LegalEntityAxis = pld_FundPartnerMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = pld_PrologisEuropeanLogisticsPartnersMember
Venture Partners [Member] | Prologis China Logistics Venture 1 and 2 [Member]
Schedule Of Equity Method Investments Joint Ventures [Line Items]
Remaining equity commitments	$ 1,277.0pld_RemainingEquityCommitments / dei_LegalEntityAxis = pld_FundPartnerMember / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = pld_PrologisChinaLogisticsVentureOneAndTwoMember

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